The tunnel magneto-Seebeck effect is the dependence of the thermopower of magnetic tunnel junctions on the magnetic configuration. It is conventionally interpreted in terms of a thermoelectric generalization of the tunnel magnetoresistance. Here, we investigate the heat-driven electron transport in these junctions associated with electron-magnon scattering, using stochastic Landau-Lifshitz phenomenology and quantum kinetic theory. Our findings challenge the widely accepted single-electron picture of the tunneling thermopower in magnetic junctions.
@article{arxiv.1707.00674,
title = {Theory of magnon-mediated tunnel magneto-Seebeck effect},
author = {Benedetta Flebus and Gerrit E. W. Bauer and Rembert A. Duine and Yaroslav Tserkovnyak},
journal= {arXiv preprint arXiv:1707.00674},
year = {2017}
}